I have 480 volt 3 phase in my mills and I use Hitachi VFD's to increase the speed of the fans. I have driven some of them as 300 hz , at which they saturate and stop rotation . At 120hz I am getting 7200 rpms out the fans. Hatichi builds fractional hp VFD's that can be run on 220 volt single phase and the VFD converts single phase to 3 phase. That feature is quite handy and they are easy to set up. Les Freeman
> >From: "[email protected]" <[email protected]> >To: [email protected] >Sent: Sat, November 13, 2010 9:35:53 AM >Subject: Re: [Gasification] tests to design a new cheap gasifier fan > >Arnt, > >True, if you need psi of pressure boost not inches of water. I will try to >add >numbers to this post later today. > > >Stephen >-----Original Message----- >From: Arnt Karlsen <[email protected]> >To: gasification <[email protected]> >Sent: Sat, Nov 13, 2010 4:52 am >Subject: Re: [Gasification] tests to design a new cheap gasifier fan > > >On Fri, 12 Nov 2010 18:13:12 -0800 (PST), Les wrote in message ><[email protected]>: > To: Discussion of biomass >pyrolysis and gasification > <[email protected] > > >Has >anyone tryed using the rotor out of a turbocharger to make a fan > for a >gasifier. I have taken the compressor end apart and made an > adapter to >mount >on a C face motors, usually 3600 rpm, for a high > volume vac system to move >solids. Les Freeman ..you would need to gear up that turbocharger fan so it >can do turbocharger speeds, they easily exceed e.g. 136000rpm, for common >automotive sizes. -- ..med vennlig hilsen = with Kind Regards from >Arnt... >;o) ...with a number of polar bear hunters in his ancestry... Scenarios >always come in sets of three: best case, worst case, and just in case. >_______________________________________________ Gasification mailing list >to >Send a Message to the list, use the email address >[email protected] to UNSUBSCRIBE or Change your List Settings >use the web page >http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > for more Gasifiers, News and Information see our web site: >http://gasifiers.bioenergylists.org/ >
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